Desk for bookkeeping-machines, &amp;c.



J. H. KNAUF T. DESK FOR BOQKKEEPING MACHINES, 6L0. APPLICATION FILEDMAR- 15, I920.

1,384,530. Patented July 12,1921.

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T0 allwhom'itmdy came Statejof Wisconsimhave invented certain new and'useful' Improvements in Desks for Bookkeeping Machines, &c., of whichthe following is: a' specification, reference being had totheaccompanying" drawing, forming a part thereof."

This"inventlongrelatestodesks for book- F keeping machines, etci, andthe object of the invention is to "improve the construction of" plateextending the length ofthe top'of the desks *in' the manner to behereinafterfde scribed and claimed;

Referring to the drawings ivhich accom panythis specificationand form apart here-' of, which drawings illustrate an embodiment of thisinvention, and on which drawings the same reference characters are usedto designate the same parts wherever they may appear in each of theviews, Figure 1 is a vertical, transverse section of the desk on theline 1-1 on Fig. 2, looking in the direction indicated by the arrows;and Fig. 2 is a front elevation of the desk.

Referring to the drawings, the reference numerals 1 and 2 designate endmembers which may be constructed in any suitable or preferred manner andwhich are connected in any suitable manner as, for example, by a back 3and a bar 4 to form a rigid structure. A top 5 is pivotally connectedwith a pair of links at each end and the links of each pair of links aredesignated by the reference numerals 6 and 7. The drawings illustratethe links 7 as pivoted to the ends of the desk by pivots 8 which arelocated below and to the rear of the pivots 9 by which the links 6 arepivoted to the ends of the desk. In other words, the links 6 and 7 arepivoted non-concentrically to the ends of the desk in such a manner thatthe rear and the front edges of the top move in arcs of differentcircles when the top is being turned from a horizontal to a verticalposition or vice versa, as is clearly shown by Fig. 1 of the drawings.This construction enables the top to be moved bodily to the rear on thelatter part of its opening movement as distinguished from a circularrotation. The links 7 are provided with counterweights 10 on theopposite sides of their pivots 8 from the top 5 and these connterweightsnot only partly counterbalance the weight of the top 5 when it is being'movedfrom oneposition to another but also seesaw i we. ra efi- YPatented: duly 1 2,

supports 11 when the top is in "its horizontal position. Thefhorizontalposition fort the top". is preferredjgwlien the top is closedflso'thatzpapers will not slide from fit but the inventlon is notflimitedtofa horizontal p.

sition of .the top.

The back 3 is provided Ste 1 12 with which a'stop 13projecting'fromthetop 5, is adapted to engage. These stopsmaybe.

formedinany suitable manner. The stop 12 isiIlustrate'd bythe drawingsas a metal,

deskandthe 13 is illustrated the" drawings as a metal plate ext endingsub stfan tially thelength of the topjoffthedesk ness or play betweenthe parts and the stop 13 on the top 5 is held in close contact with thestop 12 on the back 3 by the counterweights 10, and the stop 12 preventsthe top 5 from moving forward on the steadying supports 11.

When the top 5 is moved from its closed, horizontal position to itsopened, vertical position, as shown by Fig. 1 of the drawings, the toprests against and is supported by the bar or stop 4:, it beingunderstood, of course, that the counterweights 10 are not at siiificientpower to lift the top from the The reference numeral 14 designates a baror stop against which a bookkeeping machine, not shown, forexample, may.abut to position the machine properly with respect to the desk.

The use and operation of the desk will be I readily understood from theforegoing description and from an inspection of the drawings. In openingthe top of the desk, the movement of the top requires but very littlespace so that desks may be laced compactly within a limited area. llVhenthe top of the desk is closed, it affords an exceptionally firm andimmovable desk surface,and when the top of the desk is opened, the topforms a vision shield to prevent. distraction or annoyance.

What is claimed is:

1. The combination in a desk of ends, a back, a movable top adapted tobe moved from a substantially horizontal "positioifto a I back, a;movablegtqp adapted-to be moved g in a substantially vertical positionon the cally on each end of the desk and pivoted to the top of the desk,stops ior limitingthe movements of the top of the desk, andcounterba'laincet ...meehanism connected with the top in such amannerastdleavethe space between the ends substantially unobstructed."

2 ,The combination in a desk of ends, a

from a? substantially] horizontal position to a' substantially verticalposition; orfyv ce versa,'a plurality of'links pivoted. non eonrlcentrically on eachven'd of the desk and pivoted to'thet0p10f thdesk,s0me of the links beingprovid'ed with counterbalance weights nearthe ends of the desk to'leave the space between the end-ssubst'antiallylunobstructed, avbar connecting the ends and servingfas a stop for thetop when in its' vertical position,

means for supporting the h when in. its; substantially hori'zontaljpos'tl'on, and means to'serve'a's a stopfa'nd to make a tight joint-vbetween the top and the back. i 3. The combination in a desk of ends-r1gidly conneoted together only ;at theirrean sides to 16mm unobstructedspace between the ends and their connection, a top movably-supportedbylinks pivoted to the ends and to the to means, to support the top in asubstantial y vertical position, and means jto support the top in asubstantially hori- 'zontal position. i

' 4:. The combination in a desk of two ends,

back connectingth ends, a bar connecting the ends and spaced below theback to permit a top to'be swung, therebetween so as to rest banlinkspivotally connected with the front part-of the top and withtheends,links pivotally connected with the back part ofthe top and with the endsnon-concentrically position, saidtop, the said counterbalance weightste'ndingto move the top .upon said supports forward and awayfrom'the-back,

anda stop, to limit the extent of suchmove- Inent' s In witness'whereofI hereto aifi x -i'nysignature, s i

IJOH H.;KNAUFT. 1f

